This is one of few valley post offices that stay open late, which is extremely helpful during this Christmas season (and anytime, really). Luckily, this one is super close to my job.
I've found that as long as you're not there during peak times (5pm-6pm), the lines go pretty fast. I don't know what the difference is between the employees here and at some of the other post offices, but they are always nice and helpful here. I keep having to go back for boxes and labels and the one guy was so nice that he even put the tubular box together for me.
They're also great with helping you get the best shipping bang for your buck. They'll offer suggestions for packing and sending. One employee was adamant to get all of my items in a smaller box so I'd pay less for shipping. And he succeeded! Awesome employees!